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GeForce 9800 GT 1GB vs GeForce GT 430 1GB

Intro

The GeForce 9800 GT 1GB has core clock speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 RAM. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GT 430 1GB, which features core clock speeds of 700 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 RAM. It features 96 SPUs as well as 16 TAUs and 4 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB 60 Watts
GeForce 9800 GT 1GB 105 Watts
Difference: 45 Watts (75%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GT 1GB should in theory be much superior to the GeForce GT 430 1GB overall. (explain)

GeForce 9800 GT 1GB 57600 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 28800 (100%)

Texel Rate

The GeForce 9800 GT 1GB will be much (more or less 200%) faster with regards to anisotropic filtering than the GeForce GT 430 1GB. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
GeForce GT 430 1GB 11200 Mtexels/sec
Difference: 22400 (200%)

Pixel Rate

The GeForce 9800 GT 1GB is much (about 243%) more effective at FSAA than the GeForce GT 430 1GB, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce 9800 GT 1GB 9600 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 6800 (243%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

GeForce 9800 GT 1GB

Amazon.com

GeForce GT 430 1GB

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Model GeForce 9800 GT 1GB GeForce GT 430 1GB
Manufacturer nVidia nVidia
Year July 2008 October 2010
Code Name G92a/b GF108
Fab Process 65/55 nm 40 nm
Bus PCIe x16 2.0 PCIe x16
Memory 1024 MB 1024 MB
Core Speed 600 MHz 700 MHz
Shader Speed 1500 MHz 1400 MHz
Memory Speed 900 MHz (1800 MHz effective) 900 MHz (1800 MHz effective)
Unified Shaders 112 96
Texture Mapping Units 56 16
Render Output Units 16 4
Bus Type GDDR3 GDDR3
Bus Width 256-bit 128-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1
Power (Max TDP) 105 watts 60 watts
Shader Model 4.0 5.0
Bandwidth 57600 MB/sec 28800 MB/sec
Texel Rate 33600 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 2800 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

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